This script tests how IDMFitter.LMFit() works with multi-dimensional independent variable. This value in LM fitting used only to calculate exact values of function and derivatives in the same points as given Y values, so in fact X is just an index.

Following expression will be fitted:
Y(X1, X2) = 1.23+4.56*X12-2.34*X22

Calculation method:


  



Results:


 

Unable to instantiate control! (type library: Fitter)